150 
MERRILL. 
2. CLEISTOLORANTHUS gen. nov. 
fa / 
<£/X 
Differt Lorantho corollae tubo apice corollae limborum interioribus 
partibus coalitis clauso, corollae limbor um exterioribus partibus 4, 
liberis, late triangulari-obovatis, brevibus, patulis, apice subtruncatis, 
irregulariter dentatis. 
1. Cleistoloranthus verticillatus sp. nov. 
Glaber; foliis verticillatis, quaternis, petiolatis, oblongo-lanceolatis, 
coriaceis, risque ad 8 cm longis, basi acutis, apice acuminatis, nervis 
utrinque 2, subobsoletis ; infloreseentiis axillaribus, solitariis, floribus 
4-meris, in triadibus paucis, umbellatim dispositis, lateralibus breviter 
pedicellatis, intermedio sessile; corolla cylindracea, 4.5 mm longa, apice 
clausa. 
Glabrous throughout. Branches terete, brown or gray, slender, slightly 
lenticellate, shining. Leaves wliorled, four at each node, oblong-lanceo- 
late, coriaceous, slightly shining when dry, 4 to 8 cm long, 1 to 2.5 cm 
wide, the base acute, the apex acuminate, acumen blunt or acute; nerves 
about 2 on each side of the midrib, very obscure ; petioles 3 to 7 cm long. 
Inflorescence axillary, solitary, of depauperate umbellately disposed triads, 
the common peduncle about 1.5 cm long, slender, bearing at its apex three 
or four umbellately disposed branches,- each branch in turn bearing a single 
triad of flowers, the branches about 6 mm long, the middle flower of each 
triad sessile, the lateral ones with pedicels about 2 mm in length. Flowers 
pink or red, 4-merous, each subtended by a single, ovate, acuminate 
bract about 1.5 mm long. Calyx 2 mm long, somewhat narrowly ovoid, 
its limb obscurely 4-toothed, slightly produced. Corolla 4.5 mm long, 
cylindric, 1 mm in diameter, the throat closed by inward projections of 
the corolla-limb, which are united and form a conical body closing the 
top of the corolla-tube, the exterior part of the limb consisting of four 
short, broadly triangular-obovate lobes, 2 to 2.3 mm wide, 1 to 2 mm long, 
their apices truncate and irregularly toothed. Stamens 4, included; fila- 
ments inserted near the base of the corolla-tube, opposite the lobes, 2.5 
mm long; anthers continuous, oblong, 2-celled, introrse, obtuse, 1.5 mm 
long. Ovary 1-celled ; style 3 mm long ; stigma minute. Fruit narrowly 
ellipsoid, 8 mm long, with a single seed. 
Luzon, Province of Benguet, Mount Pulog, For. Bur. 16229 Curran, Merritt, 
& Zscholclce, January 5, 1909, on trees in hardwood forests at an altitude of about 
2,500 m. 
A peculiar plant, with the habit, vegetative and many floral characters of 
Loranthus, remarkable for its cleistogamous flowers, the throat of the corolla- 
tube being closed by a conical body formed of inward projecting and united portions 
of the limb. It differs from Loranthus also in its very short, broadly triangular- 
obovate, subtruncate and irregularly toothed, spreading corolla-lobes. 
